<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref, watch } from 'vue'
import { userLoginService, userRegisterService } from '@/api/user.js'
import { useUserStore } from '@/stores/index.js'
import router from '@/router'
// import { useRouter } from 'vue-router'    *- 第二种奇怪的方式调router路由-1/3 -*
const isRegister = ref(false)
//
const form = ref()
// 表格的数据
const formModel = ref({
  name: '',
  username: '',
  password: '',
  repassword: ''
})
//整个表单的校验规则
//1,非空校验required:true, message消息提示，trigger触发校验的时机blur change
//2.长度校验min:xx,max:xx
//3,正则校验   pattern:正则规则
//3,自定义校验
//4.自定义校验=>自己写逻辑校验（校验函数） validator:(rule,value,callback)
//(1)rule 当前校验规则相关的信息
// (2)value 所校验的表单元素目前的表单值
//(3)ca11back无论成功还是失败，都需要   cal1back回调
//    callback()校验成功
//    callback(new Error(错误信息))校验失败
/*const rules = {
  name: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 5, max: 10, message: '用户名必须是5-18位的字符', trigger: 'blur' }
  ],
  username: [
    { required: true, message: '请输入账号', trigger: 'blur' },
    { min: 5, max: 10, message: '账号必须是5-18位的字符', trigger: 'blur' }
  ],
  password: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    {
      pattern: /^\S{6,15}$/,
      message: '密码必须是6-15位的非空字符',
      trigger: 'blur'
    }
  ],
  repassword: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    {
      pattern: /^\S{6,15}$/,
      message: '密码必须是6-15位的非空字符',
      trigger: 'blur'
    },
    {
      validator: (rule, value, callback) => {
        //判断value和当前form中收集的password是否一致
        if (value != formModel.value.password) {
          callback(new Error('两次输入密码不一致'))
        } else {
          callback() //就算校验成功，也需要callback
        }
      },
      trigger: 'blur'
    }
  ]
}*/

// 注册用户 方法
const register = async () => {
  // 注册成功之前，先进行校验，校验成功→请求，校验失败自动提示
  // validate函数   对整个表单的内容进行验证。接收一个回调函数，或返回 validate Promise。
  await form.value.validate()
  console.log('开始注册请求')
  const userInformation = {
    username: formModel.value.username,
    password: formModel.value.password,
    name: formModel.value.name
  }
  console.log(userInformation)
  await userRegisterService(userInformation)
  //console.log('注册成功的返回' + res)
  ElMessage.success('注册成功')
  isRegister.value = false
}
// const userouter = useRouter()        *- 第二种奇怪的方式调router路由-2/3 -*

// 登录用户 方法
const login = async () => {
  const useStore = useUserStore()
  // 注册成功之前，先进行校验，校验成功→请求，校验失败自动提示
  // validate函数   对整个表单的内容进行验证。接收一个回调函数，或返回 validate Promise。
  await form.value.validate()
  console.log('开始登陆')
  const userInformation = {
    username: formModel.value.username,
    password: formModel.value.password
  }
  console.log('登陆界面的账号:' + userInformation.username)
  console.log('登陆界面的密码:' + userInformation.password)
  console.log('登陆界面的:' + userInformation)
  //请求登录的服务
  const res = await userLoginService(userInformation)
  //console.log('res.data.data是token:' + res.data.data)
  useStore.setToken(res.data.data)
  //console.log('useStore.token:' + useStore.token)
  useStore.setUserName(formModel.value.username)
  console.log('formModel.value.username:' + formModel.value.username)
  console.log('token:' + useStore.token)
  ElMessage.success('登录成功')
  console.log('登录成功以后')
  console.log(useStore.UserName)
  //清空输入框
  formModel.value.username = ''
  formModel.value.password = ''
  //跳转
  router.push('/')
  // userouter.push('/')      *- 第二种奇怪的方式调router路由-3/3 -*
}

// 切换的时候，重置表单内容
watch(isRegister, () => {
  formModel.value = {
    username: '',
    password: '',
    repassword: ''
  }
})
</script>

<template>
  <!--
    e1-row表示一行，一行分成24份
    e1-co1表示列
    (1):span="12" 代表在一行中，占12份(58%)
    (2):span="6"  表示在一行中，占6份(25%)
    (3):offset="3" 代表在一行中，左侧margin份数 

    el-form整个表单组件
    el-form-item表单的一行（一个表单域）
    el-input,表单元素(输入框)
    2,校验相关
    (1)el-form =model="ruleForm"        绑定的整个form的数据对象{xxx,xxx,xxx}
    (2)el-form =rules="rules"           绑定的整个rules规则对象{xxx,xxx,xxx}
    (3)表单元素=>v-odel="ruleForm.xxx"   给表单元素，绑定form的子属性
    (4)el-form-item => prop配置生效的是哪个校验规则  (和rules'中的字段要对应)
    -->
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      <!--  注册相关 -->
      <el-form
        :model="formModel"
        :rules="rules"
        ref="form"
        size="large"
        autocomplete="off"
        v-if="isRegister"
      >
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>

        <el-form-item prop="name">
          <el-input
            v-model="formModel.name"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>

        <el-form-item prop="username">
          <el-input
            v-model="formModel.username"
            :prefix-icon="User"
            placeholder="请输入账号"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="formModel.password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item prop="repassword">
          <el-input
            v-model="formModel.repassword"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入再次密码"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button
            @click="register"
            class="button"
            type="primary"
            auto-insert-space
          >
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = false">
            ← 返回
          </el-link>
        </el-form-item>
      </el-form>
      <!-- 登录相关 -->
      <el-form
        :model="formModel"
        :rules="rules"
        ref="form"
        size="large"
        autocomplete="off"
        v-else
      >
        <el-form-item>
          <h1>登录</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input
            v-model="formModel.username"
            :prefix-icon="User"
            placeholder="请输入账号"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="formModel.password"
            name="password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item class="flex">
          <div class="flex">
            <!--<el-checkbox>记住我</el-checkbox> -->
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item>
        <el-form-item>
          <el-button
            @click="login"
            class="button"
            type="primary"
            auto-insert-space
            >登录</el-button
          >
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = true">
            注册 →
          </el-link>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
.login-page {
  height: 100vh;
  background-color: #fff;
  .bg {
    background: url('@/assets/flagLog.png') no-repeat center / cover;
    border-radius: 0 20px 20px 0;
  }
  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;
    .title {
      margin: 0 auto;
    }
    .button {
      width: 100%;
    }
    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
@media (max-width: 768px) {
  .login-page {
    .bg {
      display: none;
    }
    .form{
      width: 90%;
      margin-right: 30px;
    }
    :deep(.el-col-6){
      flex: auto;
      max-width: 90%;
    }
  }
}
</style>
